remove use of {,un}setPendingActivity from DOMFileSystem.

Source/modules/filesystem/FileSystemCallbacks.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 45 matching lines @@
 class FileSystemCallbacksBase : public AsyncFileSystemCallbacks {
 public:
     virtual ~FileSystemCallbacksBase();
 
     // For ErrorCallback.
     virtual void didFail(int code) OVERRIDE FINAL;
 
     // Other callback methods are implemented by each subclass.
 
 protected:
-    FileSystemCallbacksBase(PassOwnPtr<ErrorCallback>, DOMFileSystemBase*);
+    FileSystemCallbacksBase(PassOwnPtr<ErrorCallback>, PassRefPtrWillBeRawPtr<DOMFileSystemBase>);
     OwnPtr<ErrorCallback> m_errorCallback;
-    DOMFileSystemBase* m_fileSystem;
+    RefPtrWillBePersistent<DOMFileSystemBase> m_fileSystem;
 };
 
 // Subclasses ----------------------------------------------------------------
 
 class EntryCallbacks FINAL : public FileSystemCallbacksBase {
 public:
     static PassOwnPtr<AsyncFileSystemCallbacks> create(PassOwnPtr<EntryCallback>, PassOwnPtr<ErrorCallback>, PassRefPtrWillBeRawPtr<DOMFileSystemBase>, const String& expectedPath, bool isDirectory);
     virtual void didSucceed() OVERRIDE;
 
 private:
@@ skipping 35 matching lines @@
     virtual void didResolveURL(const String& name, const KURL& rootURL, FileSystemType, const String& filePath, bool isDirectry) OVERRIDE;
 
 private:
     ResolveURICallbacks(PassOwnPtr<EntryCallback>, PassOwnPtr<ErrorCallback>, ExecutionContext*);
     OwnPtr<EntryCallback> m_successCallback;
     RefPtr<ExecutionContext> m_executionContext;
 };
 
 class MetadataCallbacks FINAL : public FileSystemCallbacksBase {
 public:
-    static PassOwnPtr<AsyncFileSystemCallbacks> create(PassOwnPtr<MetadataCallback>, PassOwnPtr<ErrorCallback>, DOMFileSystemBase*);
+    static PassOwnPtr<AsyncFileSystemCallbacks> create(PassOwnPtr<MetadataCallback>, PassOwnPtr<ErrorCallback>, PassRefPtrWillBeRawPtr<DOMFileSystemBase>);
     virtual void didReadMetadata(const FileMetadata&) OVERRIDE;
 
 private:
-    MetadataCallbacks(PassOwnPtr<MetadataCallback>, PassOwnPtr<ErrorCallback>, DOMFileSystemBase*);
+    MetadataCallbacks(PassOwnPtr<MetadataCallback>, PassOwnPtr<ErrorCallback>, PassRefPtrWillBeRawPtr<DOMFileSystemBase>);
     OwnPtr<MetadataCallback> m_successCallback;
 };
 
 class FileWriterBaseCallbacks FINAL : public FileSystemCallbacksBase {
 public:
     static PassOwnPtr<AsyncFileSystemCallbacks> create(PassRefPtrWillBeRawPtr<FileWriterBase>, PassOwnPtr<FileWriterBaseCallback>, PassOwnPtr<ErrorCallback>);
     virtual void didCreateFileWriter(PassOwnPtr<blink::WebFileWriter>, long long length) OVERRIDE;
 
 private:
     FileWriterBaseCallbacks(PassRefPtrWillBeRawPtr<FileWriterBase>, PassOwnPtr<FileWriterBaseCallback>, PassOwnPtr<ErrorCallback>);
     RefPtrWillBePersistent<FileWriterBase> m_fileWriter;
     OwnPtr<FileWriterBaseCallback> m_successCallback;
 };
 
 class VoidCallbacks FINAL : public FileSystemCallbacksBase {
 public:
-    static PassOwnPtr<AsyncFileSystemCallbacks> create(PassOwnPtr<VoidCallback>, PassOwnPtr<ErrorCallback>, DOMFileSystemBase*);
+    static PassOwnPtr<AsyncFileSystemCallbacks> create(PassOwnPtr<VoidCallback>, PassOwnPtr<ErrorCallback>, PassRefPtrWillBeRawPtr<DOMFileSystemBase>);
     virtual void didSucceed() OVERRIDE;
 
 private:
-    VoidCallbacks(PassOwnPtr<VoidCallback>, PassOwnPtr<ErrorCallback>, DOMFileSystemBase*);
+    VoidCallbacks(PassOwnPtr<VoidCallback>, PassOwnPtr<ErrorCallback>, PassRefPtrWillBeRawPtr<DOMFileSystemBase>);
     OwnPtr<VoidCallback> m_successCallback;
 };
 
 } // namespace
 
 #endif // FileSystemCallbacks_h